Patent EP0117451A1 successfully refreshed from Google Patents.
EP0117451A1
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EP
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Electromagnetic relay
Assignee: Cessione sds - Relais AG
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Filing: 1984-01-31
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Granted: —
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Expires: 2004-01-31
Abstract
Abstract An electromagnetic relay includes a coil assembly 2 with a coil 20 and an ion core 21 extending through the coil 20, an armature assembly with a pair of frame-shaped upper and lower armatures 3, 4 disposed parallel to each other and so as to surround the coil 20, and a pair of contact units 6, 8 operated by the armature assembly. The coil 20 is covered with a molded portion 23 which has a pair of lateral studs 24 integrally formed with it, the studs 24 defining a horizontal axis about which the armature assembly is pivotal. High accuracy in the positional relation between the pole faces formed by extending ends of the iron core 21 and the respective ends of the armatures 3, 4 cooperating with the pole faces is achieved by the fact that both the pole faces provided on the iron core 21 and the studs 24 form part of the coil assembly which is formed as one common block. At the same time, a very thin relay is obtained since the overall vertical dimension of the relay may be restricted to the height of the coil.
Inventors
- 👤 Masanori Motoyama
- 👤 Toyotaka Nishikawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 09:31
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H51/00; H01H51/22; H01H51/2272; H01H51/2281
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
110 words
An electromagnetic relay comprising a coil assembly (2) including a coil (20) and a core (21) penetrating through the coil and having end portions extending from the coil, an armature assembly including a pair of upper and lower armatures (3, 4) of rectangular frame-shape surrounding said coil (20) and having end portions disposed opposite said core end portions, the armature assembly being pivotal about an axis defined by a pair of studs (24), and at least one contact unit (6, 8) positioned laterally of said coil assembly (2) and including a fixed contact (8) and a movable contact (6) operated by said armature assembly for cooperation with the fixed contact.
Claim 2
Dependent Claim
110 words
An electromagnetic relay comprising a coil assembly (2) including a coil (20) and a core (21) penetrating through the coil and having end portions extending from the coil, an armature assembly including a pair of upper and lower armatures (3, 4) of rectangular frame-shape surrounding said coil (20) and having end portions disposed opposite said core end portions, the armature assembly being pivotal about an axis defined by a pair of studs (24), and at least one contact unit (6, 8) positioned laterally of said coil assembly (2) and including a fixed contact (8) and a movable contact (6) operated by said armature assembly for cooperation with the fixed contact.
Claim 3
Dependent Claim
47 words
The relay of claim 1, wherein said coil assembly (2) is covered by a molded portion (23), said pair of studs (24) being integrally formed at opposite sides of the molded portion so that said pivot axis of the armature assembly extends transversely of the coil axis.
Claim 4
Dependent Claim
42 words
The relay of claim 1, wherein said pair of studs (24') are formed inside a housing frame member (11) of the relay positioning the coil assembly (2) so that the pivot axis of said armature assembly extends transversely of the coil axis.
Claim 5
Dependent Claim
29 words
The relay of claim 3, wherein each stud (24') extends between an inner wall of said frame member (11) and a web (46) provided integrally with the frame member.
Claim 6
Dependent Claim
51 words
The relay of claim 1, wherein said studs (24") are provided on brackets (18) interconnecting said upper and lower frames (3, 4) so that the pivot axis of said armature assembly extends along the coil axis, said core end portions being bent so as to extend transversely of the coil axis.
Claim 7
Dependent Claim
27 words
The relay of any of claims 1 to 5, wherein said armature assembly includes at least one permanent magnet (5) disposed between said upper and lower armatures.
Claim 8
Dependent Claim
52 words
The relay of claim 1, wherein said at least one permanent magnet (5) is welded to the inner surface of at least one of said upper and lower armatures (3, 4) inside a socket wall (36) of synthetic resin surrounding the surface portion of the armature to which said magnet is welded.
Claim 9
Dependent Claim
51 words
The relay of claim 6 or 7, wherein said movable contact includes a contact spring (6) disposed within a space (S) defined by said upper and lower armatures (3, 4) and said permanent magnet (5) and located on that side of the permanent magnet which faces away from said coil assembly.(2).
Claim 10
Dependent Claim
30 words
The relay of claim 8, wherein said upper and lower armatures (3, 4) have nose portions (31) formed on the surfaces facing each other for actuating said contact spring (6).
Claim 11
Dependent Claim
36 words
The relay of any of claims 1 to 4, wherein each of said upper and lower armatures (3, 4) has means (30) which together form a pair of bearings for receiving said pair of studs (24).
Claim 12
Dependent Claim
78 words
The relay of any of claims 1 to 10, further comprising a casing (1) including a frame member (11) mounting said coil assembly (2) and contact unit (6, 8) and having terminals (14) connected to said coil and said contact unit and extending to the outside of the frame member, and upper and lower covers (9, 10) having peripheral portions engaging opposite edges of the frame member for sealingly enclosing said coil and armature assemblies and contact unit.
Claim 13
Dependent Claim
44 words
The relay of claim 11, wherein in either pair of mutually engaging cover peripheral portion and frame edge one has a projection (13) and the other has a groove (19) receiving the projection, with a sealant (53) being inserted between said groove and projection.
Claim 14
Dependent Claim
79 words
The relay of claim 11, 12, wherein said coil (20) has at least two end portions (50) and at least two of said terminals (14) have inner end portions (51) connected to said coil end portions, and wherein ribs (52) are formed integrally with said upper and lower covers (9, 10) adjacent said frame member (11) so as to project inwardly of said casing (1) and approach outer surfaces of said interconnected coil and terminal end portions (50, 51).
Claim 15
Dependent Claim
32 words
The relay of any of claims 1 1 to 13, wherein said core end portions have recesses (25) and said frame member (11) has integrally formed inner projections (12) engaging said recesses.
References Cited (Backward Citations)
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